Apache HttpComponents up to 5.4.2 PSL Validation certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache HttpComponents up to 5.4.2 and classified as critical. This affects an unknown function of the component PSL Validation. The manipulation results in Remote Privilege Escalation. This vulnerability is reported as CVE-2025-27820. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Apache HttpComponents up to 5.4.2. Affected is an unknown code of the component PSL Validation. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. Discovered by the Apache HttpClient team. Fixed in the 5.4.3 release

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-27820 since 03/07/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.

The vulnerability scanner Nessus provides a plugin with the ID 242270 (Oracle GoldenGate for Big Data Multiple Vulnerabilities 23.x < 23.9.0.25.07 (July 2025 CPU)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (242270) and EUVD (EUVD-2025-12102). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 242270
Nessus Name: Oracle GoldenGate for Big Data Multiple Vulnerabilities 23.x < 23.9.0.25.07 (July 2025 CPU)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: HttpComponents 5.4.3

Timelineinfo

03/07/2025 🔍
04/24/2025 +47 days 🔍
04/24/2025 +0 days 🔍
07/18/2025 +85 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-27820 (🔍)
GCVE (CVE): GCVE-0-2025-27820
GCVE (VulDB): GCVE-100-306072
EUVD: 🔍

Entryinfo

Created: 04/24/2025 14:09
Updated: 07/18/2025 17:32
Changes: 04/24/2025 14:09 (53), 05/17/2025 12:57 (3), 06/04/2025 15:54 (1), 07/18/2025 17:32 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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